Cover for traps and clean-outs for soil-pipes.



` le Jg,

L. & F. N'AIR.

COVER FOR TRAPS AND GLEAN-DUTS PUR SOIL PIPES.

APPLICATION PILBD SEPT. z, 1910.

986,847, Patented Mar. 14, 1911.

2 SEBETS'SHERT 1.

V .3g/mm L. & P. NAIR. COVER P011 TRAPs AND CLEAN-Qms Fon soIL mns. APPLICATION FILED SPPT`l 2, 18.10.

986,847 Patented Mar. 14, 1911.

. of the same.

Louis NAIR AND FRANK NMR,

-PATENT ermee.;

OF NEW BRLTAIN, CONNECTICUT.,

COVER FOR TRAPS AND `CLEAl`\l'-OU'I'S FOR SOIL-PIPES.

,specification ofLettersratent. Patented Mar. 14, 1911.

Application tiled September 2, 1910. Serial No. 580,244.

To all 'whom it may concern: l

Be it known that we, Louis Nam, a citizen ot" Russia, and FRANK Nain, a citizen ot the United States, both residing at New Britain, in the county of Hartford and `State of Connecticut, have invented certain new and useful Improvements in Covers for Traps and Clean-Outs for Soil-Pipes, ot which the following is a specification.

Our invention relates to improvements in covers fpr traps and clean outs tor soil pipes and the objects otour improvements are simplicity and economy in construction and convenience and eiliciency in use.V

In the accompanying drawings :--Figure 1. is a side elevation of a trap provided with our improved cover. Fig. 2 is a plan view Fig. 3 is a similar view of the ring top. Fig. t is a sectional View of the same on the line a: of Fig. 3. Fig. 5 is a side elevation of part of av trap provided with a cover like that shown in Fig. 15. Fig.'6 isk a sectional view on the line 1/ y of Fig. 2 on an enlarged scale, the trap being in part broken away. .Fig 7 is a similar View, with the cover removed. Fig. 8 is a side elevation of the'cover.` Fig. 9 is a side elevation of aclean out prvided\vith our cover, on the same scale as Fig. 1. Fig. 10 is' a plan view of the same with the cover removed. Fig. 11 is a sectional view of thel "parts shown in Fig. 9, on the line a s of Fig.

10. Fig. 12 is al similar View with the cover removed. Fig. 13 is a plan View of a modif lfication of our cover.. Fig. 14. is a sectional view of thesax'ne on the line w lw of Fig. 13. Fig. 15 is a view similar `to that shown 'in Fig. 9, in part broken out, showing another modification of the cover.

.A is the cover for a trap or clean out and B is a ring top to a trap suitable for receiving the same and as shown is secured in' place on the'top` of the body of a trap C of ordinary construction by a wiped joint. The said cover A comprises a generally flat and 4circular body 15 having on the upper-` side and centrally located a hexagonal head 16 suitable for receiving a wrench and on the lower side an annular outer rim 17 that is flat and forms a seat suitable for receiving apacking washer D.' Inwardly from the said' rim 17 there is a downwardly projecting-cylindrical neck or shell 18 of appreciable depth provided on the outer periphery as 5 shown with `four outwardly radially projecting lugs 19 spaced 90 degrees vapart l which extend upwardly from the -lower edge 2t) o't' the shell lQ and are provided at their upper ends with horizontal radial engaging edges 21, which are separatedrfrom the annular outer rim 17 by a space 22 suitable for engaging with a set of inclined ways 23 provided therefor on the ring top B.

drical body 24 having the top extended inwardly in theform of a flange 25 so as to form a seat furthe packing washer D, and is provided integral with the flange 25 and the inner `wall 26 of the body 24 with the ways 23, which latter are four in number to correspond with the number of lugs 19.

The flange 25 is provided on the inner 'edge with radial recesses 27, corresponding to the said lugs 19, which enter part way into the same to leave a seat 28 for the packthe lugs 19 will be admitted between the back edges 29 so'that the cover A. may be dropped into position on the ring top B and ythe lugs 19 be engaged with the ways .,The ways 23 constitute the bottom surfaces of downwardly projecting ribs 37 ,integral with the flange 25 and the inner wall 26, and are inclined relatively to the flange 25, and follow a helical path, being essentially interrupted screw threads and they e7;- tend continuously from one recess 27 to the next one, as shown extending essentially 90 'degrees The lower surfaces 30 of the ways 23 follow a helical lcourse from one recess 27 to the next one, so that the lugs 19 will engage therewith by means of the `bearing edges 21 when the cover A is turned. and thereby clamp Vthe packing washer D beon the cover and `top ring respectively.

Fig. 9, shows a clean out E provided with oureover A and in which the ring. top Bl is `'integral with the body 31 of the same.,

ln Fig., 15 a clean out E is shown in which the cover A1 is provided with an overhanging flange 32. ,i

ln the modification of theV cover A2 shown in Fig. 14 the top 33 is flush and is provided with a' central depression which is bridged .by a bridge Vor dam 3ft having parallel sides 35 suitable for receiving the engaging jaws of a monkey wrench so as to be turned thereby.

Asflescribed our top or cover is suitable The ring topB comprises an open cylintween the seats 17 and 25 provided therefor For being removably held in place on the` ring top by a wedgmg or screw pressure and ing washer D and are of sufficient depth that is readily removable and replaceable. In removing the cover the back edges 36 of the wedge shaped ribs 37 form back stops for the lugs 19 and serve to guide the same in removing the cover from the, ring top.

The flange on the cover shown in Figs. 5 and l5 serves conveniently as a handle for turning the ycover 0n and oi and is sufficient in most eases for the purposev so that the use of a Wrench may not be necessary.

lt is understood that in some cases the packing Washer D Jay be dispensed with and the seats i7 and 25 brought 'directly together. ln such .ca-se the method of connection of the ring top described is Well .United to bring the two surfaces ytogether to make a tight joint, notwithstanding slight variations in alinement of the locking ldevices relatively to the sealing surfaces.

lt is apparent that some changes from the specific construction herein disclosed ijnay be made and therefore Wev do Vnot. Wish to be imderstood as limiting ourselves to the premise forni of' construction shown and described, .but desire the liberty to, make snob.

'inwardly projecting flange having a. mul-ti ple' of inclined Ways on the under side sepairated by spaces, the said cover provided Awith a packing seat and With lugs suitablt-:eI for being admitted through the said spaces to engage with the said Ways, the said spaces comprising radial recesses 27 in tfie said ange, the diametrieal spread of the said recesses being such as to provide a wat 2S for a packing ring outside thereof.

LOUIS 'NA' FRANK n ,Y l in.

Titnesses Snr-:Firmin H. CLARKE, l NEWTON L. Loomvoon. 

